#include<stdio.h>
#include<stdlib.h>
#include<unistd.h>

int main(int argc,char* argv[])
{
    if(argc!=2)
    {
        printf("mytouch missing file operand\n");
        return 1;
    }
    FILE* fp=fopen(argv[1],"w");
    if(fp!=NULL)
        fclose(fp);
    return 0;
}
